Tax not calculating correctly with a Salary Sacrifice deduction

I have set up a new employee identical to others, but the tax is calculating on the full gross, rather than the reduced gross after the salary sacrifice.

Is there something new I have to do that is preventing this for this one employee?

Or is there a report I can run to show the back end links to see where this employyee set up differs from the others?

Help appreciated.  Pay run is tomorrow.